Merge pull request #2904 from edx/dcs/a11y-header

Remove course name from page H1, and slightly improve sequence navigation

common/lib/xmodule/xmodule/js/src/sequence/display.coffee

@@ -73,19 +73,19 @@ class @Sequence
     @$('.sequence-nav-buttons a').unbind('click')
 
     if @contents.length == 0
-      @$('.sequence-nav-buttons .prev a').addClass('disabled')
-      @$('.sequence-nav-buttons .next a').addClass('disabled')
+      @$('.sequence-nav-buttons .prev a').addClass('disabled').attr('aria-hidden', 'true')
+      @$('.sequence-nav-buttons .next a').addClass('disabled').attr('aria-hidden', 'true')
       return
 
     if @position == 1
-      @$('.sequence-nav-buttons .prev a').addClass('disabled')
+      @$('.sequence-nav-buttons .prev a').addClass('disabled').attr('aria-hidden', 'true')
     else
-      @$('.sequence-nav-buttons .prev a').removeClass('disabled').click(@previous)
+      @$('.sequence-nav-buttons .prev a').removeClass('disabled').attr('aria-hidden', 'false').click(@previous)
 
     if @position == @contents.length
-      @$('.sequence-nav-buttons .next a').addClass('disabled')
+      @$('.sequence-nav-buttons .next a').addClass('disabled').attr('aria-hidden', 'true')
     else
-      @$('.sequence-nav-buttons .next a').removeClass('disabled').click(@next)
+      @$('.sequence-nav-buttons .next a').removeClass('disabled').attr('aria-hidden', 'false').click(@next)
 
   render: (new_position) ->
     if @position != new_position
@@ -113,8 +113,6 @@ class @Sequence
 
       sequence_links = @content_container.find('a.seqnav')
       sequence_links.click @goto
-      # Focus on the first available xblock.
-      @content_container.find('.vert .xblock :first').focus()
     @$("a.active").blur()
 
   goto: (event) =>

common/lib/xmodule/xmodule/seq_module.py

@@ -89,7 +89,6 @@ class SequenceModule(SequenceFields, XModule):
             fragment.add_frag_resources(rendered_child)
 
             titles = child.get_content_titles()
-            print titles
             childinfo = {
                 'content': rendered_child.content,
                 'title': "\n".join(titles),

common/templates/xblock_wrapper.html

@@ -1,3 +1,3 @@
-<div class="${' '.join(classes)}" ${data_attributes} tabindex="0">
+<div class="${' '.join(classes)}" ${data_attributes}>
     ${content}
 </div>